Adjustable wheel chock



FIG. 1 is a perspective view of an adjustable wheel chock showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is an end view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is an side view thereof. 

The ornamental design for an adjustable wheel chock, as shown and described. 